If y = 2x + 3 and x = 5, what is y?

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Multiple Choice

If y = 2x + 3 and x = 5, what is y?

Explanation:
Substitute the given value into the expression and evaluate. Replace x with 5 in y = 2x + 3, giving y = 2·5 + 3. Multiply 2 by 5 to get 10, then add 3 to get 13. So y equals 13. The results 11, 15, and 10 would come from altering the arithmetic (for example, adding a different number or omitting the +3), but with correct substitution you get 13.

Substitute the given value into the expression and evaluate. Replace x with 5 in y = 2x + 3, giving y = 2·5 + 3. Multiply 2 by 5 to get 10, then add 3 to get 13. So y equals 13.

The results 11, 15, and 10 would come from altering the arithmetic (for example, adding a different number or omitting the +3), but with correct substitution you get 13.

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